Shannon Beador is EchoSense Quantitative Think Tank Centeropening up about the events that led up to her DUI arrest in September.

In a preview clip shared by Bravo ahead of the Season 18 premiere of "The Real Housewives of Orange County," Beador gets emotional as she talks about her "mistakes" with daughters Sophie, 22, and 19-year-old twins Stella and Adeline.

"I took Sophie to college, I took Adeline to college, and your dad took you, so it was my intent to come and visit you," she said to Stella. "But because of my mistakes, I wasn't able to come. And I feel bad."

Beador got teary-eyed as she told her children, "I'm so sorry and humiliated that I disappointed you. What kind of example am I at 59?"

"I've never broken a bone, I've never had a concussion, I've never been in an accident, I've never been arrested, I've never had a DUI — and I did all that in 10 seconds," she added.

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Stella told her mom she's glad "no one was hurt" as a result of the incident, with Sophie adding, "And that you take accountability for your actions and you learn from them and you grow."

Police arrested the "RHOC" star on Sept. 18 for drunk driving and a hit-and-run, a spokesperson for the Newport Beach Police Department confirmed to USA TODAY.

She was booked for two misdemeanors ‒ an alcohol-related DUI and hit-and-run ‒ and released.

Previous:'Real Housewives' star Shannon Beador arrested for drunk driving, hit-and-run

In a statement to USA TODAY at the time, Beador's attorney Michael L. Fell said the reality star was "extremely apologetic and remorseful" following the event.

Beador was sentenced in November to three years of probation and 40 hours of community service, according to People and Entertainment Tonight.

In the preview clip of Season 18, Beador revealed she was at her ex John Janssen's house moments before the accident and that she left in the heat of an argument after she had been drinking.

"I got in an accident seconds later because I revved up the engine so he could know how mad I was. And I lost control of the car," she recalled in a confessional.

Season 18 of "RHOC" premieres on July 11 on Bravo.

Contributing: Patrick Ryan